Headlamp



FIG. 1 is a front perspective view of a headlamp showing our new design;

FIG. 2 is a side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a rear view thereof.

It will be understood that the broken lines shown in the drawings illustrate portions of the headlamp that form no part of the claimed design. 

CLAIM The ornamental design for a headlamp, as shown and described. 